Process for canning crabs, lobsters, and the like.



Copies of this patent maj -be obtained for KATSUSAIBURO USULQQF VNVEAMUROMAVVCHI', I-IVOKKAIDO, ArA-N.

, rnoouss non oauume cRABs LoBs'rERs, ann rrrn LIKE.

No Drawing.

To all whom it may concern: 7 3

Be it known that I, KATsUsABUno UsUI, merchant, a subject of the Emperor of Japan, residing in No. 1, e-Chome, Urradori, Oaza Kiot akacho, Nemuromachi, Hokkaido, Empire of Japan, have invented certainilmprovements in Processes for Canning Crabs, Lobsters, and the like, ofwhich the following is a specification.- '7

This invention has reference to an improved process for canning crabs,'lobsters, and the llke, wh ch conslsts in first stripping oil the shell or carapace and -termi-.

nally operating upon each leg of the said crabs, lobsters, and the like, provided such operation should be performed While they are still living, so as to'cause the blood and lymph circulating thereof to flow out spon-' taneously through the point or points of operation, and subsequently treating the same in the manner usually practisedin the crustacean canning industry; and has for its ob ect to render the process more eX- peditious, considerably cheaper and more reliable in eitect \vlthout havmg the-d1sadvantage of discoloring the productsthat. are,

to be used for the consumption of man.

Crabs, lobsters, andthe like, are liable to discolor, if canned under ordinary process. This is due to the sulfu'rous matter contained in the blood coagulating with the flesh'of such lobster-crustacean. Such sulfurous ma'tter, upon. decomposition, forms an ammonium sulfid and hydrogen sulfid, Which, upon coming into contact With iron produce iron sulfid Which act ,so detrimentally upon the products as to, blacken them disadvantageously so that they can To ob- :viate this diliiculty, heretofore, several not be received by the consumer.

means have been proposed, such as by coat,-

ing the inner surface of the cans with Specification o fLetters' Patent. PatentdF'eb 15,1916, Application filed May 29,1915. Seria1No.31 ,2 30. j l I special lacquer, or by providing an insulat- 'ing means through the use of acid paper,

bamboo skin, wood shavings, etc; These;

methodsare not satisfactory as it does not be obtained.

'- I may carry out my said operation by lirst taking off the shell or carapace of the crabs,

enable "the full capacity of the process to lobsters, and the like, While they are not yet perished, then pinch ofi each leg, pref erably with apair of sci'ssors or shears, in. V

such a manner as to first cut off the first" articulations and proceeding to take ofithe claws from the fourth"articulationsof each 7 leg, and-lastly cutoff the second and third -211i31011lfll310118 in successive order, The body and legs thus operated'on Will then be set aside for several minutes. This will allow practically all containing blood and "lymph to fioiv out spontaneously through the points I 7' so operatechand leave no source of produc ing iron sulfid which act so detrimentally" upon the flesh of the crabs, lobsters, and v the like,packed in the tin cans.

Having described my invention What I;

claim as new and desire to secure by Let- 5' ters Patent of the United States, is

Process for canning crabs, lobsters, and

the like, which consists infirst 'strippin g of V I the carapace and articularly operatingupon} each leg of said crabs,'lobsters, and the like, l

,While alive, as to cause the blood i and lymph circulating therein'to flow out spontaneously, and subsequently treating same.

in usualvmanner, substantially'as set forth.

j In testimony hereofl affix my signature in presence'of two Witnesses. 7'

Witnesses: V s GENJI I{URIBARA,

.I'IARUTADA YASUMARA.

five cents each, by addressing the"C0mmiSSi01161 of Patents, Washington, D. G3

n rrsusneuno usur. v 

